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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.das.rdb.generator.impl;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.apache.tuscany.das.rdb.config.Table;
import org.apache.tuscany.das.rdb.config.wrapper.MappingWrapper;
import org.apache.tuscany.das.rdb.config.wrapper.TableWrapper;
import org.apache.tuscany.das.rdb.impl.DeleteCommandImpl;
import org.apache.tuscany.das.rdb.impl.ParameterExtendedImpl;
import org.apache.tuscany.das.rdb.impl.SDODataTypeHelper;
import org.apache.tuscany.das.rdb.impl.SDODataTypes;
public final class DeleteGenerator extends BaseGenerator {
public static final DeleteGenerator INSTANCE = new DeleteGenerator();
private final Logger logger = Logger.getLogger(DeleteGenerator.class);
private DeleteGenerator() {
super();
}
//JIRA-952
private String getDeleteStatement(MappingWrapper mapping, Table t) {
TableWrapper table = new TableWrapper(t);
StringBuffer statement = new StringBuffer();
statement.append("delete from ");
if(mapping.getConfig().isDatabaseSchemaNameSupported()){
statement.append(t.getSchemaName()+"."+t.getTableName());
}
else{
statement.append(t.getTableName());
}
statement.append(" where ");
Iterator names = table.getPrimaryKeyNames().iterator();
Iterator properties = table.getPrimaryKeyProperties().iterator();
while (names.hasNext() && properties.hasNext()) {
String name = (String) names.next();
statement.append(name);
statement.append(" = ?");
if (names.hasNext() && properties.hasNext()) {
statement.append(" and ");
}
}
if (this.logger.isDebugEnabled()) {
this.logger.debug(statement.toString());
}
return statement.toString();
}
public DeleteCommandImpl getDeleteCommand(MappingWrapper mapping, Table t) {
TableWrapper tw = new TableWrapper(t);
DeleteCommandImpl deleteCommand = new DeleteCommandImpl(getDeleteStatement(mapping, t));
Iterator i = tw.getPrimaryKeyProperties().iterator();
for (int idx = 1; i.hasNext(); idx++) {
String property = (String) i.next();
ParameterExtendedImpl p = new ParameterExtendedImpl();
p.setName(property);
p.setColumnType(SDODataTypeHelper.columnTypeForSDOType(SDODataTypes.OBJECT));
p.setConverter(getConverter(tw.getConverter(property)));
p.setIndex(idx);
deleteCommand.addParameter(p);
}
return deleteCommand;
}
}
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